Hana Studio: 2 Counters in Aggregation Calculation View

Hi Experts,

I have the following situation:

my data in the aggregation node (short version)

Now I have two counters in the aggregation node, one for Field_1 and one for Field_2

I expect the following results:

Counter_Field_1 = 3

Counter_Field_2 = 2

I get the following results (Because BLANK also is relevant for the counter)

Counter_Field_1 = 4

Counter_Field_2 = 3

So I tried to do it in a calculated column based on the counters, like this:

Counter_Field_1_New = if(Counter_Field_2 > 0, Counter_Field_1 - 1, Counter_Field_1)

Counter_Field_2_New = if(Counter_Field_1 > 0, Counter_Field_2 - 1, Counter_Field_2)

But I can't use the counters in a calculated column.

Anyone an idea how I can get the results that I expect? Can I count the data only if the field is <> blank?

Thanks in advance and best regards

Thorsten